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Determining unknown concentration | Johnstone’s triangle worksheets | 14–16 years
By 
Helen Harden
Source: Royal Society of Chemistry
Guide learners to connect their thinking about calculating unknown concentrations following a titration
Develop learners’ thinking about calculating an unknown concentration of an acid at three different conceptual levels: macroscopic, sub-microscopic and symbolic.
This resource is made up of a single-page Johnstone’s triangle worksheet, which helps learners to think about reading titration apparatus, rearranging formulas and calculating concentration .
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